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An alveolus (plural: alveoli, from Latin alveus, "little cavity"), is an anatomical structure that has the form of a hollow cavity. Mainly found in the lung, the pulmonary alveoli are spherical outcroppings of the respiratory bronchioles and are the primary sites of gas exchange with the blood. Date: December 2007: Source: Own work using:
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Almost any type of lung tumor or lung cancer can compress the alveoli and reduce gas exchange capacity. In some cases the tumor will fill the alveoli. [33] Cavitary pneumonia is a process in which the alveoli are destroyed and produce a cavity. As the alveoli are destroyed, the surface area for gas exchange to occur becomes reduced.
The tendency for the alveoli to collapse is therefore almost the same at the end of exhalation as at the end of inhalation. Thirdly, the surface tension of the curved watery layer lining the alveoli tends to draw water from the lung tissues into the alveoli. Surfactant reduces this danger to negligible levels, and keeps the alveoli dry. [6] [37]
Courtesy of Noah Fecks / Panera Bread. The soup cups' designs are an homage to elements of Panera's soups: tomatoes, broccoli cheddar, and the chain's popular bread bowls.
This V-neck number's ribbed knit top and high-waisted pants complete its casual-chic, vaguely retro vibe, and you'll be psyched to combine the pieces with other chillax-time all-stars in your ...
SHANGHAI/BERLIN (Reuters) -Mercedes-Benz is betting on China's Momenta to help it win back market share in the world's biggest auto market, with plans for fresh investment and at least four future ...